Vending machine



FIG. 1 is a front and right-side perspective view of a vending machine showing my new design;

FIG. 2 is a left-side elevational view thereof;

FIG. 3 is a right-side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof.

The broken line showings are environmental only and form no part of the claimed design. 

The ornamental design for a vending machine, as shown and described. 